I did some rough math. I'm good at Excel, but these exist on the web, too, such as:

https://www.calculatorsoup.com/calculators/financial/index-depreciation-calculators.php

The other issue, besides what Bill brought up, is the 5-year a Vehicle? It seems likely there is a % personal and % business, then? Even then, I would have to use 200DB on this, too, to match the numbers you gave for 2017 and 2018.

I used:

5-year MQ 200DB

7-year MQ 200DB

15-year MM SL

39-year MM SL

I got totals for 2017 (1010) and 2018 (7545) okay. 2019, that presumed vehicle doesn't make up the difference, though, unless there is another jump to yet a different depreciation method, with or without a % personal use.

Maybe this is what they don't want you to find out.